Add Translate captions options

Trying to fix #22

I want to remove the css change line inside the loop (line 100 of card.coffee), but to do this i need to transform the pseudo elementos `.expiry:after` and `.expire:before` into real dom elements.

What you guys think?

PS.: The way it is now, line breaks (`\n, \A, <br>`...) dont work inside the pseudo elements :(